Daily maintenance guidelines and precautions for Pilewater potted plants

Cold bonsai may feel strange to you at first, but in fact, you have a pot in your family, and you don't even know it. Cold water is also called mosaic nettle, the background color of the leaf is green, which is mixed with white markings. Next, let's take a look at the cold water bonsai maintenance guide.

1. Health care effect

The cold water is light, bitter, cold, has the effect of clearing heat and promoting dampness, and has a certain effect on the treatment of jaundice, tuberculosis and other diseases.

two。 Maintenance guide

(1) Light and temperature

Lengshuihua prefers strong scattered light, the cold resistance is not strong, and the suitable temperature is 15-25 ℃.

(2) soil selection

Pot cold spray soil requirements are not strict, can be mixed with humus or peat soil, perlite and river sand and a small amount of base fertilizer, basin soil should be changed once a year at the beginning of spring.

(3) watering

The cold water flower likes the humid environment and should be watered once a day during the peak growing season from April to September to keep the basin soil moist and high air humidity.

(4) fertilization

Cold water flowers should not be over-fertilized, thin and rotten organic fertilizer should be applied once a month in the peak growing season, and the number of fertilization should be gradually reduced after autumn, and should be stopped in winter.

(5) Reproduction

The plant division method and cutting method are commonly used for propagation, which are mostly carried out in the early spring when changing pots.

① ramet

The plant clump was divided into several clumps, and 3-5 seedlings were retained in each clump. Many roots were planted in the basin and placed in a cool place. The seedlings could take root in about 1 month, and then normal management was carried out.

② cuttage

Select the top branches as cuttings, there should be 2-3 buds on the cuttings, remove the basal leaves, insert them into sand or vermiculite, pay attention to maintain a certain humidity, it can take root after about half a month, and can be planted in the pot after one month.

(6) pruning

The cold spray is resistant to pruning, and the taller old branches should be cut off from the base when cultured for 2-3 years, so as to keep the plant shape beautiful.

(7) arrangement and arrangement

The cold water flower is green and lovely, the plant shape is short, the leaf color is green and elegant, can be planted in a small pot and placed on a flower rack, corner, coffee table or desk, or hang indoor with a hanging basin or hanging basket, which can fully show its beautiful and elegant beauty.

With regard to the maintenance methods of cold-water bonsai, the editor of Huinong Network has briefly introduced these points for you today. Friends who have raised cold-water potted flowers at home can have a look and learn more!

Guidelines for the maintenance of Flower cultivation in February, the temperature began to pick up, but very slowly, there was still a cold spell, and the weather was cold and rainy. 1. Continue to do a good job in preventing the cold of flowers. 2. According to the development of Narcissus, corresponding measures should be taken in time to adjust the growth process and make Narcissus blossom on time during the Spring Festival. When the water culture time of daffodils is too late or the weather is too cold, measures should be taken to increase temperature and promote flowers, such as putting it in a sunny place on the windowsill during the day (it should be moved into an indoor warm place at night), adding warm water in the basin, covering plastic bags, etc.; when the daffodils grow too fast, they should cool down to slow down their growth, such as proper shade, window ventilation and so on.

3. Continue to reshape and turn the bonsai of coniferous and deciduous broad-leaved trees. 4. Field mining of stump materials. After late February, the weather turned warm and there was no cold current, so coniferous trees and deciduous broad-leaved trees could be excavated in the field. The stumps dug in the field should have more lateral roots, pruned due to posture, properly stored, and planted with transportation to ensure the survival rate of planting. 5. The sap of pine trees such as Pinus elliottii and Pinus elliottii begins to flow, and abdominal grafting culture can be carried out in late February. The 2-month-old black pine is selected as the rootstock, and part of the branches and leaves of the rootstock are cut off before that. The scion chooses 1-2-year-old stout branches. When grafting, one side of the lower end of the scion will be cut by about 1.5 cm, and the other side by about half cm. Then make an oblique incision on the rootstock that is slightly longer than the long slope of the scion, with a depth of 1 to 2 of the coarseness of the grafting site, and the incision should be as close to the root as possible. Finally, insert the scion into the incision of the rootstock, align the cambium of the two to make it completely match, and bind it with plastic film. 6. turn the basin of rhododendron, elm, sparrow plum, Tianzhu, rose, kumquat, etc., and cut off withered branches, disease and insect branches, weak branches, overdense branches, overlapping branches, bifurcated branches and overgrown branches. Elm, sparrow plum and other stump bonsai thinning and cutting the branches in the branches, so that the twigs in the branches are moderately dense, the upper and lower parts of the branches do not overlap, and the left and right do not bifurcate, and at the same time, the twigs in the branches show the shape of dragon claw curved iron and reveal the ancient state, thus increasing the aesthetic value of the pile trees; if the branches of Tianzhu bonsai grow too high and affect the composition needs, the branches should be short to the appropriate proportion. Because of the strong sprouting power of Tianzhu, new buds can sprout anywhere under the cut. The weather characteristics of February: this month is the last month of winter and the cold time of the year, second only to January. By the end of February, the weather began to warm and transition to spring, and a considerable number of flowers began to turn from winter dormancy to recovery. The flower events this month mainly include the following aspects: first, continue to do a good job in cold protection and heat preservation of potted flowers in protection facilities; second, do a good job in pruning and changing pots of some woody flowers after flowering; third, do a good job in the preliminary preparations for cutting, grafting and sowing seedlings of some flower species. First, flower culture 1. Sow seeds. The kinds of flowers that can be sown in the greenhouse or greenhouse in February are: calendula, cyclamen, dwarf sunflower, asparagus, crabapple, red and blue flower, cornflower, chrysanthemum, wheat straw chrysanthemum, string red, marigold, peacock chrysanthemum, petunia, Ling Ling grass, Fu Lukao, Prunus chinensis, moth butterfly, goldfish grass, golden lotus, pansy and so on. The seeds that can be sown in the open field at the end of February are Magnolia, Michelia, heather, maple, begonia (Rosaceae) seeds that have been cracked by sand storage treatment, as well as camphor, Liriodendron chinense, privet, rich seeds, fire thorns, palms, Koeluan trees, disease-free seeds, seven-leaf trees, cloves, etc.; seeds such as Chimonanthus praecox, Chimonanthus chinensis, and wisteria should be soaked for 24 to 48 hours, wait for the seeds to absorb enough water before sowing. Late fragrant jade bulbs and red bulbs can also be planted in greenhouses or greenhouses in February. two。 Cuttings. The species of woody ornamental plants that can be cut in the open field or covered with plastic film in February are as follows: plum blossom (palace powder, green calyx and other varieties cut off annual branches after flowering), Phyllostachys pubescens, hibiscus (southern), crape myrtle, Ruixiang (southern), fragrant, pomegranate, golden bell, welcome spring, Jasminum, June snow, hibiscus, hypericum (plum), Spiraea, ten great efforts, yellow poplar, oil hemp stalk and so on. The branches of lilac and Lingxiao hidden in sand can also be cut at this time. In the first ten days of February, we can continue to cut the branches such as sea immortal flower, Shu Shu, eight immortal flower, Tamarix, Fatong, grape, fig and so on for storage treatment for cutting at the end of March. The ornamental plants that can be cut indoors in February are: Fusang, triangular flower, African violet (leaf cutting), bamboo crabapple, red-backed cinnamon, a string of red, geranium, jasmine, pearl orchid, bergamot, jade tree, jade leaf, stone lotus, epiphyllum, lotus flower, cold water flower, rooting on the ground, longevity flower, Rieger begonia, dragon spit bead, goose palm wood, Guangdong evergreen, Zhu Jiao and so on. 3. Grafting. One-year-old sturdy seedlings of Pinus elliottii were used as rootstocks indoors, and Japanese five-needle pine, brocade pine and white pine were grafted, and then covered with film to keep warm and moisturizing. One-year-old seedlings such as apricot and hairy peach were used as rootstock to cut and breed red leaf plum, plum blossom, green peach, Birthday Bun with Bean Paste Filling, purple leaf peach and so on. In the south of the Yangtze River, when the leaf buds on the branches of Chimonanthus przewalskii grow to the size of the wheat grain, the seedlings of Chimonanthus praecox with a diameter of about 0.8 to 1.2 cm are used as rootstock, and excellent varieties such as "Suxin", "Xinkou" and "Tiger's foot" are cut and bred, and the bagging inflatable and moisturizing measures are adopted, and the survival rate is higher. Taking the sturdy branches of rose "Elizabeth" as rootstock, cutting or splitting the scion of rose, and adopting the measures of first grafting and then cutting and then covering with plastic film to keep moisture and cold, the survival rate of grafting can be greatly improved. 4. Press the strip. The ornamental plant species feasible for strip culture in February are: plum blossom, wax plum, pedicel begonia, sweet-scented osmanthus, purple magnolia, gardenia, brocade flower, Luohan pine, emerald cypress, snowball, Qionghua, spring, golden bell, hypericum, eight immortal flowers, hemp leaf hydrangea, snow spray, red maple, Michelia mollissima and so on. 5. Ramet. The herbaceous flower species that can be cultivated in February are: Iris, Shegan, onion orchid, Ophiopogon, auspicious grass, evergreen, purse peony, hairpin, purple calyx, small Taran, pineapple, purple back evergreen, Jianlan, Chunlan, Cymbidium, kidney fern, hanging orchid, ground rooting, canna, bamboo taro, tortoise back bamboo, synthetic fruit taro, crane orchid, gentleman orchid, aloe and so on. The woody flower species that can be cultivated in February are: Phyllostachys pubescens, hibiscus, Hypericum, Ten Gonglao, eight Immortals, Begonia, Jiexiang, Yingchun, Admiralty, Canary, Snow spray, Safflower Spiraea, Jasmine, Pearl Orchid, Tiger thorn, Purple Magnolia, four Seasons Cinnamon, Phoenix tail Bamboo, Phyllostachys pubescens and so on. Second, harvest seeds and transplant 1. Gather seeds. The seeds of Phyllostachys pubescens, holly, rich seeds and winter corals can be picked in February, and the seeds can be sown after the seeds are exposed to white. Artificial pollination can be given to the plants of Cymbidium in full bloom in greenhouse in order to obtain seeds with better genetic quality. In February, we should pay attention to check the seeds of all kinds of flowers and trees stored in sand to see if there is mildew. If mildew occurs, it should be cleaned in time; if the seeds are found to be dry, they can be properly sprayed with water to maintain a certain degree of humidity in the sand and seeds. If it is found that there are a small number of cracks in the seeds, they should be sown in a relatively short time. Once the radicle stretches out too long, it is easy to break the radicle and affect the emergence rate of the seed. Large seeds in sand storage can be sowed on demand, while small seeds can be sowed in strips or rows. After sowing, pay attention to covering grass or plastic film to protect moisture and prevent cold. two。 Transplanting and planting. In February, the soil in the south is not frozen and the temperature is high. The feasible transplanting species of grass flowers are: Carnation, goldfish grass, hollyhock, silver edge holly, daisy, calendula and so on. In February, most deciduous shrubs and some evergreen tree species can be planted. Among them, deciduous species such as hibiscus, pomegranate, bauhinia, begonia, ginkgo, maple, maple, wisteria, crape myrtle, wax plum, plum blossom (before germination), magnolia, disease-free, acacia, seven-leaf tree, red-leaf plum, cherry, papaya, Lingxiao, Linden, Liriodendron, green peach, Chinese tallow, Spiraea, three branches, Shu Shu, Robinia pseudoacacia, dragon claw Robinia pseudoacacia, Yu Li, elm leaf plum, hypericum (plum), weeping willow, golden silk willow, wood hibiscus, hibiscus, Yellow peel, persimmon, apricot, etc. Evergreen tree species such as Michelia, camphor, du ying, Fa Qing, run nan, purple nan, etc., can be delayed until the end of February to early March; sweet-scented osmanthus, privet, Shu juniper, dragon cypress, Platycladus orientalis, black pine, etc., should be pruned appropriately. Third, flower management 1. Keep out the cold. The weather is still cold in February. After two months of indoor (greenhouse) maintenance, the nutrient consumption of potted ornamental plants is large, and the resistance of flowers and plants is greatly reduced, so we should continue to do a good job of moisturizing and cold protection. If there are heating facilities in the greenhouse or greenhouse, you should continue to give heating and prevent harmful gases or smoke from escaping into the greenhouse or greenhouse; if you hang grass curtains on or around the top of the greenhouse, you can continue to hang grass curtains; and when you encounter the sudden cooling weather after snow, you can't take it lightly. Overwintering potted flowers shelved in protective facilities should continue to do a good job of ventilation, especially at the end of February, the ventilation time can be extended during the time of the highest temperature of the day. It is worth noting that indoor potted flowers bask in the sun, it is best to put them on the inside of the south window, do not open the window. A small number of cold-averse flowers planted in the family, such as Milan, Phalaenopsis, peacock taro, synthetic taro, iron cross begonia, variable leaf wood, pink daiye, etc., in particularly cold weather, you can add plastic bags at night, or leave them in the toilet, turn on heating appliances such as "bath tyrants" and other heating to ensure that they can survive the winter safely. two。 Water it. In February, due to the low temperature, most of the potted flowers can keep the potted soil moist and be able to survive the winter safely, because at this time, the root growth stops, the metabolism is at a low level, and less water is needed. Once there is stagnant water in the potted soil, it is very easy to cause rotten roots to die. In relatively dry rooms, foliar spraying and spraying should be carried out frequently to increase the air humidity of the local environment. If the indoor air is too dry, the light ones will cause the leaves to lack green and lose color, the buds will stop growing, and the heavy ones will dry up and wrinkle, and the buds will shrink and fall off, such as camellia, tea plum, rhododendron, plum blossom, dai dai, kumquat, winter coral and so on. In addition, it is also required to ensure that the water temperature of watering or spraying is basically consistent with the indoor air temperature and soil temperature in the shed. For those potted plant species that will bloom before and after the Spring Festival, such as melon and leaf chrysanthemum, primrose, longevity flower, camellia, tea plum, Belgian rhododendron, calendula, etc., fruit ornamental plants such as firethorn, bamboo, daidai, bergamot, lemon, rich seeds, tangerine, winter coral, not only keep the potted soil moist, but also spray water on leaves, buds and fruits. Only in this way can the leaves be green, the flower buds expand rapidly and the fruit be colorful. Especially for peony, plum blossom, sticking stem begonia, vertical silk begonia and so on placed in the greenhouse, the branches must be sprayed once or twice a day to accelerate the expansion of their buds, so that they can spit out fragrant flowers as scheduled. Buy back the Cymbidium cultivated in the greenhouse, because the temperature and humidity in the greenhouse is quite different from that in the family, if the leaves are not often sprayed with water, the leaves will often shrink and wither. Potted plants and bonsai placed in the air-conditioning room, especially the Japanese five-needle pine bonsai, must ensure that the potted soil is moist and spray water to the plant once or twice a day, otherwise it is very likely to cause plant death. Although the vast majority of potted flowers do not need much water in February, inspection should be strengthened, especially if the temperature continues to rise for several consecutive days, and supplementary watering and spraying should be strengthened in time. In February, green trees and flowering shrubs transplanted in autumn and winter should be watered in time, especially for those evergreen trees and flowering shrubs, foliar spray should be given properly around noon in fine weather to prevent the leaves from drying and falling off, affecting the recovery of growth in spring. 3. Fertilize. In February, we can continue to apply base fertilizer to most green trees and flower shrubs planted on the ground, such as cake manure, barnyard manure, chicken feces and pigeon manure, pond mud, septic tank cleaning, etc., and cover the soil after digging annular grooves from the periphery of the plant root system to meet the needs of plant growth, flowering and fruiting in spring and summer. In February, potted flowers placed in 10 ℃ to 15 ℃ greenhouses (greenhouses), such as camellia, tea plum, melon and leaf chrysanthemum, primroses, cyclamen, Belgian rhododendron, shrimp flowers, golden bracts, Ruixiang, plum blossoms, European daffodils, hyacinths, tulips, crab claw orchids, lotus flowers, colorful pineapples, iron orchids, fruit vines, magnolia, etc., can continue to apply low concentrations of potassium dihydrogen phosphate. In order to facilitate the growth of the plant and bud flowering. For most of the potted flowers, foliage plants and stump bonsai placed in the greenhouse, including small, miniature bonsai, as they are still dormant, fertilizer should be stopped, otherwise it is easy to cause rotting roots of the plant to die. 4. Trim. In February, the ground or potted plum blossom, wax plum, golden bell, and spring after flowering can be shrunk intensively. The branches that have flowered only retain 2 to 3 buds at the base, and the rest are all cut off to promote them to send more new shoots in the same year, and the branches will be more dense in the coming year. In addition, the long branches, dead branches and irregular branches should be pruned together. The species of tree stump bonsai dominated by scissors, such as hammer elm, Finch, banyan, triangular maple, Fujian tea, oak, white wax, bayberry, Elaeagnus angustifolia, wolfberry, holly, June snow, juniper, juniper, etc., continue to prune the pile head that has not been changed for 1 to 2 years. 5. Change the basin. At the end of February and the beginning of March, it is a favorable time for most potted ornamental plants to change pots, usually when the winter dormancy of plants is coming to an end, the root system resumes growth, but the leaf buds have not yet sprouted. The flower species that can be changed at the end of February are: Fusang, geranium, Milan, Magnolia, jasmine, pearl orchid, dichromatic jasmine, red back cinnamon, kidney fern, tortoise back bamboo, rubber tree, hanging bell begonia, bamboo crab crabapple, four seasons begonia, colored leaf begonia, spring orchid, cymbidium, Jianlan, iron tree, gentleman orchid, 12 volumes, aloe, crab claw orchid, lotus flower, Jingtian, jade tree, jade leaf, longevity flower, Zhu Dinghong, asparagus, hanging orchid, Nanyang fir, Goose palm wood, evergreen, crane orchid, shrimp flower, golden bract, coral flower, Longtuzhu, camellia, tea plum, sticking begonia, eight immortal flowers, southern bamboo, variable leaf wood, fruit taro, bamboo taro, rich seeds, fire thorns, daidai, kumquat, bergamot and so on. 6. For the prevention and control of powdery mildew in the leaves of melon and leaf chrysanthemum planted in greenhouse and Botrytis cinerea on primrose leaves, 1500 times of methyl thiophanate wettable powder was sprayed at the initial stage of the disease, once every 10 days. 2 to 3 consecutive sprays can treat Botrytis cinerea on potted cyclamen leaves and Corolla in the greenhouse. The Belgian rhododendron potted in the greenhouse should be sprayed with 1000 to 1500 times of the wettable powder (mainly isocarbamide), and foliar fertilizer such as "multi-effect good" should be stopped, because at this time, the temperature is low and the humidity in the greenhouse is high. It is difficult to absorb foliar spraying, and the reverse side is easy to breed mold on the leaf surface, and in serious cases, it will form ugly disease spots. For aphids, scale insects, ants and coal fouling diseases on potted flowers (such as daidai and kumquat) in the greenhouse, they can be brushed away with a hairbrush when they are small, and those with a large number of insects can be sprayed 2000 times with omethoate EC. After aphids, scale insects and ants are killed, coal fouling disease will also be eliminated. The insect bodies on potted flower plants in the greenhouse, such as pink Tamarix, white shield scale, oyster shield scale, black brown shield scale, etc., can be brushed with a hard hair brush, or killed with cotton stick alcohol, or 2500 times of 2.5% kungfu EC can be sprayed, or 3% carbofuran and 20% Tiemiak granules can be buried in the flowerpot. Continue to clean up the dead branches and leaves under the flowers and trees, and burn the diseased leaves on the potted flowers and plants, which can significantly reduce the occurrence of diseases and insect pests in the coming year. 7. Compost. Pour the tea seed cake, rapeseed cake and bean cake into the pool or tank, inject clear water and carry out sealed fermentation, so as to be used to irrigate potted flowers after dilution in the growing season. Or the cake fertilizer is piled up and fermented, spread out and dried after about 2 months, and then packed in a plastic bag after being fully dried. The granular powder of cake fertilizer dried after drying is spread in the flowerpot as topdressing. For Cymbidium, Jian Orchid, Cymbidium, Phalaenopsis, Cartland and other potted flowers, it is more convenient than pouring liquid cake fertilizer, especially raising flowers on the balcony, which is not only convenient and hygienic, but also can reduce the occurrence of foliar diseases. In addition, it can also be used for the preparation of culture soil. 8. Reclaim frozen ponds. In the first ten days of February, the unfinished ploughing garden can be reclaimed, frozen over the winter, and then trenched to make a bed for raising seedlings or transplanting flowers and trees in spring. The plant species that can be used for flat modeling in February are Cuibai, Luohan pine, Sabina vulgaris, Platycladus orientalis, Platycladus orientalis, Sabina vulgaris, ginkgo, June snow, ground cypress, five-needle pine, yellow mountain pine, black pine, thousand-headed red pine, bayberry, golden finch, small money plum, wax petal flower, sticking begonia, crape myrtle, banyan tree, elm, triangle maple and so on. The plants modeled 1 to 2 years ago were re-banded and adjusted, and it was found that the plants had concave constrictions. The metal or non-metallic wires should be released and replaced with new binding materials for flat binding and fixation. For shallow pot tree stump bonsai, landscape bonsai, small miniature bonsai, stone bonsai, etc., continue to do a good job of heat preservation and cold protection, so that they are always in an environment of no less than 0 ℃, so as to prevent plants from freezing to death or artificial cemented rocks from being frozen and disintegrated, resulting in unnecessary losses. Guidelines for the conservation of courtyard flowers in January

January is the lowest and coldest month of the year, with a monthly average temperature of-4.5 ℃ (Beijing) to 4.2 ℃ (Shanghai). The potted ornamental plants that can be displayed in the courtyard in the north must be particularly hardy. Among them, woody ornamental plants are: White bark pine, spruce, Japanese fir, Huashan pine, Japanese five-needle pine, black pine, brocade pine, southern bamboo, wolfbone holly, melon seed yellow poplar, big leaf yellow poplar, yew, Torreya grandis, Luohan pine, round cypress, emerald cypress, real cypress, Platycladus orientalis, dragon cypress, Shu juniper, firethorn, wax plum (blooming), ginkgo, plum blossom, Budi coconut, European palm, palm, Chilean coconut, coconut. Washington palm trees, etc. The southern region can display: Banyan tree, cycad, Canadian jujube, long spike brown, silver sea jujube, palm bamboo, silver bauhinia, silver birch, ten meritorious services, star anise gold plate, Sakuran peach leaf coral, silver tooth palm and so on. In less cold areas such as Jiangnan, some grass flowers can also be displayed, such as one-leaf orchid, tequila, auspicious grass, kale, daisies, pansy, calendula and so on. Whether it is woody ornamental plants or herbaceous ornamental plants, outdoor display should ensure that the basin soil does not freeze, and do a good job of anti-freezing and heat preservation.

Propagation of flowers in the courtyard

1. Sowing if there is a double-layer plastic greenhouse with good moisturizing performance in the courtyard, asparagus, orchid, begonia, cyclamen, winter coral, paulownia, African chrysanthemum, pansy, marigold, dry gold lotus, goldfish grass, balsam flower, flower rhombus, etc., but it is required to ensure that the temperature in the shed can meet the minimum temperature requirements for seed germination and seedling growth of different kinds of flowers. As long as the local old land is not frozen this month, the woody ornamental plants that can be sown in the courtyard are: peony, safflower oil tea, seven-leaf tree, disease-free seed, camphor, privet, lobular privet, du ying, wisteria, palm, Qingtong, pond fir, fire thorn, heather, wood heather, sweet-scented osmanthus, Michelia, rose (Elizabeth), rich seed, wolfbone holly, Chinese tallow, Luanmu and so on. Note that before sowing, in order to prevent underground pests from harming seeds, a small amount of tea seed cake, tobacco powder or pesticide carbofuran can be sprinkled.

2. Cutting in simple plastic greenhouse or double-layer plastic greenhouse with good moisturizing performance this month. The ornamental plant species that can be cut are: Jasmine, pearl orchid, geranium, inverted golden bell, Belgian rhododendron, triangular plum, umbrella grass, gemstone flower, jade leaf, bergamot, stone lotus, epiphyllum, arrow lotus, cold water flower, shrimp clothing grass, golden lotus, ground rooting, longevity flower, dragon spitting pearl, goose palm wood, rubber tree, Ruixiang, red back cinnamon, Guangdong evergreen, eight immortal flowers, Zhu Jiao, Fusang, four seasons begonia, bamboo crabapple, bamboo crabapple, Ash (African jasmine), banyan tree, golden peach leaf coral, etc. Open field or mulch in the courtyard this month The ornamental plant species that can be propagated by cutting are: plum blossom (palace powder, green calyx, etc.), red leaf plum, rose (Elizabeth, Fenghua, Liana, etc.), Wintersweet (with heel), Spiraea, yellow poplar, thick skin incense, ten konglao, pomegranate, silver bud willow, Luohansong, June snow, fragrant incense, hypericum, Admiralty, spring welcome, snow spray, Jasminum, gardenia, crape myrtle, golden leaf privet, red leaf Berberis and so on. The cutting substrate can be either general sandy soil or the mixture of vermiculite and river sand.

3. Grafting in the southern region, if the room temperature in the greenhouse can be kept above 20 ℃, Camellia oleifera or Camellia oleifera can be used as rootstocks to cut off a single bud and peel and stick small camellias, moisturizing with plastic bags, the survival rate is higher; 1-2-year-old seedlings of Acer truncatum are used as rootstocks, red maple and feather maple are grafted with inflatable bags; annual apricots and plums are used as rootstocks to cut and propagate excellent varieties of plum blossoms Elizabeth or wild rose was used as rootstock to cut and propagate superior varieties of rose; in Guangzhou area, lime was used as rootstock to propagate tangerine and kumquat between Lesser Cold and Greater Cold, and the survival rate was higher.

4. The ornamental plant species that can be propagated under low pressure this month are: purple magnolia, camellia, wax plum, plum blossom, brocade, gardenia, pedicel begonia, vertical silk begonia, Xifu begonia, real cypress, emerald cypress, snowball, Qionghua, spring welcome, golden bell, eight immortal flowers, hemp leaf hydrangea, red maple, smile, four seasons cinnamon, eight laurel, French holly, Hua ash wood and so on.

5. The herbaceous ornamental plants that can be propagated this month are: onion orchid, Ophiopogon japonicus, Ophiopogon japonicus, craygrass, auspicious grass, hairpin, purple calyx, Jian Lan, Chunlan, Cymbidium, Chrysanthemum, Suzuki, Saxifraga, Magnolia, Iris, pineapple, Magnolia, Magnolia, Iris, pineapple, Magnolia, Magnolia, Chimonanthus, Amorphophallus, Guanyin, Anthurium, Guanyinlian, Guanyinlian Many green emperors and so on. It is worth noting that for the ramets of some cold-resistant flower species, it is best to be carried out in a plastic greenhouse with good thermal insulation performance, so as to avoid freezing damage. The woody ornamental plant species that can be divided this month are: Phyllostachys pubescens, Hypericum, Aristolochia angustifolia, eight Immortals, Bauhinia, Spiraea, Snow spray, Cinnamomum, Begonia, Brown Bamboo, Golden Finch, Golden Bell, Jasmine, Gardenia, Magnolia, sisal, Phoenix Bamboo, Phyllostachys pubescens, French holly, Bauhinia, Ditang, Jasmine, Pearl Orchid and so on. It should be noted that cold-resistant species can only be divided in the greenhouse.

Management of flowers planted in courtyard

1. Transplanting in areas where the weather is not too cold, the species of grass flowers that can be transplanted and planted in the courtyard are: carnation, kale, calendula, daisies, etc.; in the colder areas in the north, carnation, primroses, calendula, goldfish grass and pansy can be planted in the pot first, put in the greenhouse, and then transferred to the outside of the shed or planted in the courtyard after the return of air in spring. Due to the particularly cold weather this month, some evergreen trees, such as camphor, French holly, privet, du ying, Schima superba, magnolia, sweet-scented osmanthus, and so on, can continue to be transplanted according to conventional methods in the south of the Yangtze River, while in the north of the Yangtze River, measures such as intensity shearing, bringing soil balls, section sealing wax, trunk rope wrapping or binding plastic film moisturizing can ensure the normal survival of the trees. This month, most deciduous shrubs and green trees can be transplanted and planted in the courtyard. Such as hibiscus, pomegranate, bauhinia, begonia, ginkgo, maple, wax plum, plum blossom, white magnolia, purple magnolia, free from disease, Lingxiao, Linden, Liriodendron, green peach, tallow, red spiraea, incense, rose, rhododendron plum, dragon claw and so on. This month, we can also combine afforestation and land preparation in forestry to collect wild tree stumps, such as elm, sparrow plum, triangular maple, wisteria, wintersweet, Elaeagnus angustifolia, wolfbone holly, oak, Yingrihong, southern bamboo, etc., after giving strength shearing, carry out shallow burial and high cultivation, and cover grass curtain to prevent cold, which can be used to make tree stump bonsai after survival.

2. Pruning hedges, balls and flowering shrubs that have not been pruned in December should continue to be pruned. According to the different growth characteristics and tree shape requirements of flowering shrubs in the base area, different standards are adopted, which generally require cutting off disease and insect branches, thin and weak branches, dead branches, shrinking long branches and disordered branches, so as to make the flowers and trees tend to be beautiful in appearance and light in the inner chamber. Hedges, green walls, color blocks, etc., continue to be trimmed in accordance with the requirements of straight lines, flat faces and angular angles, while the pruning of balls and other geometric plants requires smooth curved surfaces and flat straight faces. The pruned branches and leaves should be concentrated and burned and can be used to make farm manure.

3. Watering for ornamental plants such as flowers and shrubs transplanted in late autumn and early winter last year, attention should be paid to watering management, which can be watered every 7 to 10 days. If there is more dust on the leaves, the canopy can be sprayed at noon in fine weather. It should be noted that the leaves had better be dried in the afternoon to prevent water droplets from remaining on the leaves, otherwise they would encounter a special low temperature in the early morning of the next day and frost or freeze on the leaves, which would cause a certain degree of damage to the leaves. In order to prevent water evaporation near the plant, rice straw can also be covered within a radius of 1 to 1.5 meters around the tree canopy after watering, which can not only keep moisture, but also protect the root system.

4. fertilizing the southern region, for the grass flowers transplanted in late autumn and early winter, such as carnation, cherry cherry, Fu Lukao, daisy, pansy, calendula, etc., as long as the temperature is not too low, we can continue to apply low concentration dilute liquid fertilizer to promote its normal vegetative growth. For the flowers and trees planted in the courtyard that have not yet completed winter fertilization, such as sweet-scented osmanthus, camellia, plum blossom, wax plum, rose, crape myrtle, bauhinia, pomegranate, begonia, Michelia, magnolia, Yingchun, golden bell, hypericum, broad-leaf ten meritorious fruits, Phyllostachys pubescens, pyracantha, etc., we should lose no time in digging ring grooves around their roots and burying appropriate amount of compound fertilizer or cake fertilizer. Generally, 1 to 2 jin of compound fertilizer or 1 jin of dry cake fertilizer can be applied per plant to meet the needs of sustained growth in that year.

5. For pest control, the litter of cut flowers and trees should be centrally burned; at the beginning of this month, for the species of south trees moving northward, the trunk should be bundled with grass rope as soon as possible to keep the bark from freezing; for thick flowers and trees that have not yet been whitened, it should also be completed at the beginning of the month; cleaning up the weeds and leaves in the courtyard and burying them centrally can significantly reduce the occurrence of diseases and insect pests in the coming year. Plant ash can be applied to remove the overwintering aphids on the plant, and the egg blocks and pupae found on the tree trunk should also be scraped off in time.

6. at the beginning of this month, the plots in the courtyard that are going to be used for cutting, sowing and planting this year should seize the time to dig, and at the same time, cake fertilizer, pond mud, barnyard manure and so on should be applied to reduce the harm of underground pests to sowing seedlings after freezing. The harm of underground pests to sowing seedlings can be reduced, and the free space under big trees should also be dug, so that the occurrence of diseases and insect pests can be reduced.

7. Prepare fertilizer to dry the litter, leaves and weeds cleared from the courtyard, accumulate with the garden soil, ignite and burn, and form a fire-irrigated soil that can be used for sowing and covering soil or preparing potted soil; put vegetable cake, bean cake, chicken droppings and pigeon dung into the tank, add water and seal fermentation, in preparation for watering potted flowers, bonsai and ground flowers. Pig manure, chicken urine and cake fertilizer are mixed with pond mud and garden soil, which can be used to prepare culture soil or to be used as topdressing for flowers and trees.

8. There are not many seeds that can be harvested this month, only those ornamental plant species whose fruits can store branches for a long time, such as Phyllostachys pubescens, Firethorn, holly, rich seeds, lobular privet, privet, red maple and so on. The seeds should be treated in time after harvest, and sand storage should be given to accelerate germination in preparation for sowing between March and April. The mature asparagus, magnolia and winter coral in the simple greenhouse are sown as they are picked.

9. Check the seeds stored in sand this month, including Magnolia, Michelia, Magnolia, heather, holly, etc., to see if the seeds are moldy. If mildew occurs, rinse in time and replace clean river sand storage; if the seeds are found to be dry, they should be given appropriate spray humidification; if some seeds are found to be white, sow in time and cover with plastic film to keep warm and moisturizing. Check the root of Dahlia and the underground stem of canna stored indoors to prevent mildew.

Management of potted flowers in courtyard

1. Watering pines and cypresses that are not afraid of cold and potted plants such as ginkgo, wax plum and plum blossoms placed in the courtyard should be watered around noon every half month to keep the basin soil moist without causing ice on the basin. For potted flowers and trees that have been moved to a simple greenhouse, such as plum blossom, camellia, tea plum, Ruixiang, Belgian rhododendron, etc., because their stems are in the expansion or early blooming stage, in addition to watering the potted soil, attention should also be paid to spraying water on branches and leaves to create a humid environment. For foliage plants shelved in the greenhouse, basin soil watering should also be controlled, the foliage can be sprayed once a week around noon, and the water temperature should be basically the same as that of the greenhouse to prevent damage to leaves and roots.

& nb